I have a pretty decent starting map right now that you can check out if you like.
Seed;
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A thing to note on this map, there is a troll cave relatively near the spawn, in the meadows. It does not actualy have any trolls nor attract new ones. So dont worry about that.
Some map intrest that i will mark as spoiler (so dont read it if you want to go in blind)
The map has;
A huge starting island
Lots of meadows and blackforest all over.
Swamp and mountain biomes with quite a lot of Iron.
No Plains thats hidden away, that i could find atleast.
There is plains on the starting island but behind a swamp biome.
Multiple boss locations, and a trader also on the main island.
An inland sea near the spawn, that is connected with 3 paths for boats going 2 directions